baber/WOPTO huggingface dataset:
Patent GB-620033-A (GB)
Title: Improvements in or relating to the holding of flexible conducting elements in contact with other surfaces
IPC: H01J29/28
Filed: 1945-10-06
Abstract: 620,033. Electric discharge tubes. McGEE, J. D. Oct. 6, 1945, No. 26069. [Class 39 (i)] An electric discharge device contains a fine flexible mesh of conducting material and a layer of insulating material, and has means for applying electrostatic force to said mesh so that during normal operation of the device the mesh is urged into close contact with said layer. In one application of the invention a fine flexible metal mesh is mounted on a metal frame and adjacent to the mesh is disposed a sheet of glass or mica having on its opposite surface a conducting layer which may form the signal plate of the electron discharge device. During operation of the device a potential difference of the order of 500 volts is applied between the metal mesh and the signal plate so as to hold the mesh in close contact with the glass or mica sheet. According to the Provisional Specification electromagnetic force instead of electrostatic force can be used to hold a flexible conducting element of magnetic material in close contact with another surface. In another application according to the Provisional Specification, electrostatic force can be used in securing by an adhesive a thin metal mesh to a backing plate for the purpose described in Specification 619,855. In a further application of the invention according to the Provisional Specification, contamination of a glass or mica sheet mounted within the envelope of a discharge device during the usual baking operation that is necessary to ensure de-gassing, is prevented by disposing a thin sheet of metal or foil in proximity to one surface of the glass or mica sheet and applying during the baking operation a potential difference between the sheet of metal or foil and a conducting layer or electrode on the opposite surface of the glass or mica sheet. In a further application of the invention according to the Provisional Specification, a metal foil can be secured to a glass or mica sheet by the application of a potential difference between the foil and an electrode on the surface of the glass or mica sheet opposite to that to which said foil is applied and then baking the glass or mica sheet and the foil in vacuo whilst maintaining the application of the potential difference. The foil can be employed as a signal plate and the glass or mica sheet may form the support for a mosaic screen such as is used in television transmitting tubes.
Patent GB-1438944-A (GB)
Title: Combustible compositions and method of use
IPC: C10L5/48
Filed: 1972-06-05
Abstract: 1438944 Combustible artificial resin compositions BROBAT-KAYFORD Ltd 1 June 1973 [5 June 1972 17 Nov 1972] 26089/72 Heading C3R [Also in Division C5] A combustible composition comprises carbonaceous particles substantially uniformly bonded by a carbamide or formaldehyde resin that was cured at below 60‹ C. A liquid hydrocarbon fuel (e.g. kerosene) may be absorbed in the particles and/or emulsified in the resin. The carbonaceous particles may be coal dust, creosote residues, charcoal, coking plant debris, wood charcoal plant fines, soot, and coal briquetting plant fines. Powdered hard coking pitches may also be included. The resin may be produced by use of an acidic or basic catalyst or by use of RF or radio-active radiation. Resins produced by use of a catalyst include melamine - formaldehyde, dicyandiamideformaldehyde, urea - formaldehyde, furfuryl alcohol - formaldehyde, furfuryl alcohol - ureaformaldehyde, phenolic formaldehyde, and resorcinol - formaldehyde resins. Surface active agents, e.g. aryl sulphonates, alkenyl sulphonates, dodecyl benzene sulphonic acids may be present in the composition. The composition may also include oxidizing agents, e.g. K, Na or ammonium nitrate, copper salts, zinc salts and tin salts, emulsion stabilizers, e.g. pclysaccharides or cellulose derivatives and additional particulate material, e.g. polythylene glycol, polyethylene granules, sawdust, fatty alcohols, fatty acid salts, paraffin wax granules and granulated firelighter. The details of the mixing (for instance including the use of the curable material as a foam) and moulding steps to produce the composition are described.
Patent GB-719990-A (GB)
Title: Vacuum producing equipment
IPC: F04F5/46
Filed: 1952-10-17
Abstract: 719,990. Centrifugal pumps. NASH ENGINEERING CO. Oct. 17, 1952 [Oct. 18, 1951], No. 26092/52. Class 110(1) [Also in Group XXVIII] A vacuum apparatus comprises a two-stage liquid ring pump 10, Fig. 1, such as those described in Specifications 324,249 and 324,286. [both in Class 110(i)], drawing working gas at atmospheric pressure e.g., steam or air through a filter 36, a valved duct 34 and a nozzle 54. Fig. 3, together with an axially spaced diffuser 56 of an ejector 28 having its suction inlet 42 connected by a duct 38 to the system to be evacuated. In operation the pump 10 draws through a valved by-pass 98 until a gauge 40 registers a vacuum of 28.5 inches mercury gauge whereupon the by-pass is closed and the ejector increases the vacuum to 29.5 inches. The pump 10 normally discharges through a valved duct 102 to atmosphere but when evacuating gases which it is not desired should be mixed with air in the apparatus valves 32, 104 are closed and a valve 108 is opened to utilize the pump discharge at atmospheric pressure as working gas for the ejector. In a modification the suction inlet of the ejector is connected to the discharge end of a second ejector using air at atmospheric pressure as the working fluid and having its suction inlet connected to the discharge end of a third ejector also using atmospheric air as the working fluid and having its suction inlet connected to the system being evacuated.
Patent GB-654132-A (GB)
Title: Improvements in or relating to the concentration of silicious oxidic non-magnetic iron-bearing minerals
IPC: B03D1/001
Filed: 1948-10-07
Abstract: Silicious, oxidic, non-magnetic iron-bearing minerals are concentrated by cationic froth flotation using a primary aliphatic amine collector and an aqueous pulp brought to a pH value of 8-10 by the addition of an alkali.  The alkali may be caustic soda, soda ash, trisodium phosphate or the corresponding potassium salts.  The collector may be a water soluble form of a primary alaphatic amine having 10-18 carbon atoms in the aliphatic chain or a water soluble derivative of dodecylamine.
Patent GB-309092-A (GB)
Title: Improvements in or relating to the cylinders of internal combustion engines
IPC: F02B23/08
Filed: 1927-10-05
Abstract: 309,092. Ricardo, H. R. Oct. 5, 1927. Cylinders, combustion chambers of, and arrangement of igniters and baffles for guiding charge in.-In a cylinder having a combustion chamber which overlaps a portion only of the cylinder bore, a projection G on the cylinder head, preferably over the exhaust valve H, forms a pocket, containing between 10 and 25 per cent of the charge and the sparking plug is mounted therein. The projection G is recessed if necessary to provide clearance for the valves, and the dimension L is as small as possible; the invention is especially applicable to the combustion chambers described in Specification 148,046. The Specification contains several indicator diagrams showing how smoother running is produced by the engine, and it is stated that detonation is avoided when the clearance between the piston top and the cylinder head is less than 1/16 inch; figures are also given to show to what extent the compression ratio must be reduced to avoid detonation when the clearance exceeds this amount.
Patent GB-135826-A (GB)
Title: Improvements in Flange Lubricating Devices for Wheels of Railway Vehicles.
Inventor: ROTH ALBERT
IPC: B61K3/02
Filed: 1919-10-27
Abstract: 135,826. Roth, A. Nov. 26, 1918, [Convention date]. Lubricant conveyed by mechanical means.-A device for lubricating the flanges of railwayvehicle wheels, as described in Specification 124,170, is modified so as to apply lubricant to both sides of the wheel flange. An oil channel has two branches leading to the two sides of the flange, and two distributing-rollers 8<1>, 8<2>, Fig. 1, are used, one of them being pressed axially by a spring 20. In a modification, the roller 8<1> is geared by toothed wheels to the spindle 7, and oil is delivered on to its periphery instead of on to the flange 2 direct, the roller 8<2> being dispensed with. Fig. 3 shows a device for giving a forced delivery through a delivery pipe 16 of oil which is raised by a loose ring 13 on the spindle 7. A head 23 on the spindle has right and left handed helical surfaces, and similar surfaces are formed on a sleeve 24 fitting loosely on the spindle. According to the direction of rotation, a right or left handed helical channel is produced between the parts 23, 24, which acts as a helical conveyer to deliver the oil under a certain pressure.
Patent GB-186626-A (GB)
Title: Improvements in or relating to smoking pipes and cigar or cigarette holders
IPC: A24F1/16
Filed: 1922-09-30
Abstract: 186,626. BÚthune, G. de. Oct. 1, 1921, [Convention date]. Woid [Published under Sect. 91 of the Act]. Tobacco pipes and cigar and cigarette holders. -Relates to pipes &c. provided with concentric or parallel tubes arranged within an enlarged bore in the stem so that the smoke is caused to pass to and fro through the tubes in succession. In the arrangement shown in Fig. 1, the smoke from the bowl 1 .passes through an inner tube 7, between concentric tubes 7, 9, through holes 10 in the outer tube, and through a groove 12 in a block 11 into the bore 13 in the mouthpiece 3. The stem may be circular, Fig. 2, or ellipitical, Fig. 3. In modifications shown in Figs. 5, 6, 7, the smoke passesthrough parallel tubes 18 to 21 or 28, fitted in end blocks 22, 23 formed with cross passages connecting adjacent tubes. Fig. 8 shows a bowl 1 mounted in an aluminium or metal stem 29 containing tubes forming the bore.
Patent GB-1147431-A (GB)
Title: Paper-making machine dandy roll driving apparatus
Inventor: SUTCLIFFE BRIAN
IPC: D21F7/02
Filed: 1965-06-23
Abstract: 1,147,431. Dandy roll driving apparatus. WOOLLARD & HENRY Ltd. 23 June, 1966 [23 June, 1965], No. 26496/65. Heading D2A. [Also in Division H2] The dandy roll of a paper-making machine is driven by an electro-magnetic constant torque output device 13 so that there is a constant slippage between the roll and the Fourdrinier wire independent of the speed of the wire. An electric motor drives, through a reduction gearbox and coupling, input shaft 15 connected to input rotor 22 which is mounted within stator 19 having field coil 20. In the small clearance 24 between rotor 22 and an inner rotor 23 connected to output shaft 14 there is ferro-magnetic powder which provides a magnetic tangential force on rotor 23 which is constant if the current in coil 20 is constant. The motor and device 13 &c. are mounted on a table the height of which is adjustable by screw jacks 17 Fig. 3 (not shown). For high wire speeds the electric motor may be the receiver of a self-synchronous transmitter/ receiver system with the transmitter being drivingly connected to the couch roll shaft.
Patent GB-322819-A (GB)
Title: Improvements in shaft furnaces
IPC: C21B7/18
Filed: 1928-09-15
Abstract: 322,819. Metallges. Akt.-Ges., Hubmann, 0., and Voerkel, F. Sept. 15, 1928. Charging.-The charging of a rectangular shaft furnace 1 is effected by apparatus adapted to feed small quantities of material in succession to portions of the cross-section of the furnace. As shown, the charge material is delivered by an overhead conveyer 2 to a shoot 5 mounted on a carriage 3 which supports transverse rails 6 for a travelling hopper 4. The latter comprises pivoted halves 9, 10, Fig. 3, fitted with rollers 13, 14 adapted to engage with guide members 15, 16, Fig. 5, which are so formed at their ends 24, 28 that the hopper 4 opens when it reaches the terminal positions. The hopper is traversed on the rails 6 by a member 21 and an endless chain 22 driven by an electric motor, the latter being reversed by switches which are operated by the hopper when it reaches the end positions. In operation, after a charge has been delivered to section a, Fig. 2, the hopper 4 moves to the left and, on reaching the terminal position, delivers the charge received from the shoot 5 during this travel on to the section b. The carriage 3 is now moved, by hand or automatically, so that the sections c, d can be similarly charged; the operation being repeated until the whole cross-section of the furnace has received a charge. When two or more furnaces are disposed in line, the arrangement is such that between the delivery of charges to sections a, b, of the first furnace, a charge is supplied to each of the other furnaces in turn.
Patent GB-923146-A (GB)
Title: Improvements in or relating to kinematographic film projectors
IPC: G03B21/32
Filed: 1959-08-04
Abstract: 923,146. Film projectors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 4, 1959 [Aug. 7, 1958], No. 26567/59. Class 97 (1). A flat, rigid plate forming one wall of a boxlike casing for a 35 mm. film projector has openings for direct mounting of the bearings of the shafts of the film sprockets, film guide elements and film spools, and constitutes the main supporting member for other parts such as the lamp housing, driving motor and, if required, sound heads. As shown in Fig. 1, the spools 7, 8 and (not shown) the film sprockets, guide elements and sound heads, are mounted on the outer side of the plate 1, to which is attached a bracket 5 for the lamp housing 6, the projector being hinged for tiltable adjustment to its base 3. Fig. 5 is an interior view of the casing housing the driving motor 30 belt-coupled to the Maltese cross mechanism 33 via shaft 32 which drives a shaft 34 by which, via a gear-wheel and chain system, are driven the shaft 35 of the lower film spool and the shafts 36 and 37 of the feed sprockets, all the shafts being carried in bearings mounted in suitably-positioned openings in the plate 1. No feed sprocket is required at 36 if sound heads are not required, and a 1,800 metre spool can then be mounted at 16, or a 600 metre spool at 17. If a sound head is used, a 600 metre spool can be mounted at 16. Two additional openings near the sound head carry bearings for guide rollers provided with flywheels situated within the casing, to give quieter movement of the film. Electric wiring 40 is also housed inside the casing.
Patent GB-1389257-A (GB)
Title: Pulse generators
IPC: H03K3/72
Filed: 1972-06-07
Abstract: 1389257 Pulse generator circuits BRITISH AIRCRAFT CORP Ltd 31 July 1973 [7 June 1972] 26571/72 Headings G4D D7X D6Y D6C1 and D6C2 [Also in Division G4] A pulse generator comprises a clockpulse source feeding an adjustable counter for determining the pulse repetition period and an adjustable counter for determining the pulse duration, electronic means being provided for inhibiting operation if the adjustment settings are inadmissible, e.g. if the pulse duration is set to be longer than the pulse period. The circuit described also provides delayed pulses. The clock 10 feeds a repetition period determining counter 12 which starts counting at a reset value selected by a control 26 and a "9's complement circuit" 28. When a circuit 42 detects a count of 998 it sets a bi-stable circuit 44 to provide an output at 50. The bi-stable circuit also opens a gate 14 to allow a similar adjustable counter 20 to operate and to reset the bi-stable circuit when full as so to terminate the output of 50. The detector 42 also sets a bi-stable circuit 52 which opens a gate 16 allowing the clockpulses to pass to a third adjustable counter 22 which, when full, sets a bi-stable circuit 56 to produce an output at 62. The bi-stable circuit opens a gate 18 allowing the clockpulses to pass to a fourth adjustable counter 24 which, when full, resets the bistable circuit and terminates the output at 62. Thus pulses are produced at 62 having the same repetition frequency of those at 50 but adjustably delayed with respect thereto by the count in 12. A counter 43 is full at one pulse less than counter 42 and controls a NAND gate 64 but if the pulse from the bi-stable circuit 44 has not ended before the end of the pulse repetition ,  period, the gate 48 is closed and the output at 50 is blocked. A similar circuit including a NAND gate 70 closes gate 60 to block the output at 62. A further detector 76 causes the output to be blocked if the pulse repetition period is too short.
Patent GB-664025-A (GB)
Title: Improvements in or relating to the manufacture of aromatic nitro-amines
Inventor: WEAVER JOE CLINE
Filed: 1949-10-18
Abstract: Aromatic nitroamines are manufactured by the ammonolysis of a nitrophenol in the presence of an alkaline buffer salt which is the water-soluble reaction product of a strong alkali (preferably a volatile alkali) and an acid having a dissociation constant within the range 5 X 10-13 to 6 X 10-10 at 25 DEG  C. (such dissociation constant being the secondary constant in the case of a dibasic acid and the tertiary constant in the case of a tribasic acid).  The quantity of alkaline buffer salt is advantageously not more than a molar quantity with respect to a molar quantity of the nitrophenol, and may be less, e.g. 0.05-0.5 (preferably 0.1-0.3) mol. per mol. of nitrophenol.  In examples: (1) o-nitrophenol is autoclaved with aqueous ammonia in the presence of ammonium borate to produce o-nitroaniline; (2) m-nitro-p-cresol similarly yields m-nitro-p-toluidine in the presence of monoammonium phosphate. Specification 690,476, [Group XX], and U.S.A.  Specification 2,128,700 are referred to.
Patent GB-1173237-A (GB)
Title: Film Magazine
IPC: G03B17/30
Filed: 1967-06-09
Abstract: 1,173,237. Film magazines. FUJI SHASHIN FILM K.K. and FUJI PHOTO OPTICAL CO. June 9, 1967 [June 16, 1966], No.26837/67. Heading G2A. A film magazine comprising a cylindrical body portion having a pair of side walls and a slot through which inserted film is drawn out, the film being wound round a shaft, has one or more projections or depressions provided on one side wall, which projection is positioned to indicate e.g. the film sensitivity or number of frames to sensing mechanism when the magazine is inserted into a camera. The side walls each have an opening in which the shaft rotates but does not project beyond the side walls. The projection is arranged concentric with the opening.
Patent GB-431135-A (GB)
Title: Improvements in method of and means for making conical tubular bodies
IPC: B21C37/18
Filed: 1933-09-29
Abstract: 431,135. Drawing tubes. GROSS, F., 30, Mecumstrasse, D³sseldorf, Germany. Sept. 29, 1933, No. 26896. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 25, 1934]. [Class 83 (iv)] A tube 1 is drawn to taper by geared die rolls 3, 4 with tapering grooves which are drawn over the tube, either along the whole length at once or along short lengths I, II &c. in turn, the rolls then being moved back for the next draw and being rotated (by hand or automatically) during this withdrawal to bring a smaller part of the pass groove to work on the tube at the next draw. Tapered sections between plain cylindrical sections Fig. 5, may also be made by adjusting the die-gap of the rolls at required position.
Patent GB-1110667-A (GB)
Title: Process for reducing iron ores in rotary tube furnaces
IPC: C21B13/08
Filed: 1966-06-16
Abstract: In the reduction of iron ore in a rotary kiln a porous carrier impregnated with liquid fuel is introduced into the kiln at a location where the temperature is at least 600 DEG C. and preferably being at least 10% at that location.  The carrier material may consist entirely or partially of the ore to be reduced, possibly in pelletized form, or may be coal, coke or any other material of suitable porosity.  Dust such as carbon black, ore dust or coal dust arising in the process may be pelletized with the fuel and returned to the kiln, preferably by blowing, while additional reducing agent such as coal, may be charge to the upper end of the kiln along with the ore to be reduced.  The liquid fuel is cracked on entering the furnace, carbon black being deposited on and reducing the ore while the gases which are not utilized for reduction are burnt in the upper part of the kiln to supply heat.
Patent GB-409996-A (GB)
Title: Improvements in joints for soil and flush pipes of w.c. basins
IPC: E03D11/17
Filed: 1933-09-30
Abstract: 409,996. Pipe joints. LANE & SONS, Ltd., J., and CLIFF, E. A., 1, Dickinson Street, Manchester. Sept. 30, 1933, No. 26912. [Class 99 (i).] A soil pipe F is connected to a W.C. basin by a sleeve E embracing the expanded end of the pipe, and a sleeve G surrounding the spigot A and extending into the pipe to compress packing D, flanges of the sleeve being bolted together. A flush pipe F<1>, Fig. 7, has a flanged end abutting against a shoulder in the socket B and packing D<1> is compressed by a sleeve E connected by bolts to a ring G clamped on the socket.
Patent GB-637826-A (GB)
Title: Improvements in or relating to processes for electric arc seam-welding and apparatus therefor
IPC: B23K9/24
Filed: 1947-10-07
Abstract: 637,826. Uniting by fusion. GENERAL ELECTRIC CO., Ltd., PENROSE, J. R., and DONELAN, J. A. Oct. 7, 1947, No. 26926. [Classes 83 (ii) and 83 (iv)] Making tubes and electric cables.-In electric arc seam welding tubes, cable sheaths, &c. with relative motion between work and welding-head, the electrode has a curved surface arranged to move in a direction relative to the head, opposite to that of the work, at a speed sufficient to hold the arc stationary relative to the head, the arc root moving along the curved surface. For longitudinally welding the lapped edges of an aluminium cable sheath a carbon disc electrode 2 with bevelled edge 8 is driven by belt 5 and gearing 4 from an electric motor 6 mounted in a unit 1 vertically screw-adjustable through a hand wheel 23. The cable is fed through a pair of concave profile guide-wheels and a pair of contact-wheels 11 sprung together and mounted on pivoted arms 17 of a laterally adjustable base 29. The disc 2 and wheels 11 are insulated from the machine and current is supplied through copper-graphite discs, the electrode 2 being sprung into contact with its disc 32 connected to a negative terminal 9 for D.C. welding. The cable edges may first be cold-welded and the arc is arranged to be central between the wheels, and struck for example by highfrequency discharge. With a 180 amp. welding current the peripheral disc speed is between one tenth and one fifteenth of the cable speed of 25 feet per minute. Additional stabilizing means may comprise electromagnets with like poles before and behind the arc, and an argon jet directed into the arc in the direction of cable travel. In a modification nitrogen jets before and behind the arc or argon jets on either side are used. In further modifications the disc may be of tungsten, e.g. for welding steel, or of molybdenum, and its polarity may be positive or alternating. In a further form two discs may be used for two-phase supply or two discs may be used in series on single-phase supply. In a final modification according to the Provisional Specification a chemical flux may be employed and the cable sheath edges may be butted.